JP3794223B2 - Inner cooling jacket for cylindrical workpieces - Google Patents

Inner cooling jacket for cylindrical workpieces Download PDF

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Publication number
JP3794223B2
JP3794223B2 JP30797399A JP30797399A JP3794223B2 JP 3794223 B2 JP3794223 B2 JP 3794223B2 JP 30797399 A JP30797399 A JP 30797399A JP 30797399 A JP30797399 A JP 30797399A JP 3794223 B2 JP3794223 B2 JP 3794223B2
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Prior art keywords
main body
cylindrical workpiece
cooling jacket
support member
cooling liquid
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JP2001131632A (en
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元一 藤沢
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富士電子工業株式会社
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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Description

【０００１】
【発明の属する技術分野】
本発明は、高周波加熱される筒状ワークの内側に挿入されて、筒状ワークの内側から冷却液を噴射する筒状ワーク用内側冷却ジャケットに関する。
【０００２】
【従来の技術】
筒状ワークＷの周面Ｗ１に高周波焼入を施す高周波焼入装置には、図３に示すように、周面Ｗ１を内面から加熱する高周波加熱コイル（図示省略）と、周面Ｗ１を外側から冷却する外側冷却ジャケット（図示省略）と、周面Ｗ１を内側から冷却する内側冷却ジャケット５００とが必要となる。
【０００３】
高周波加熱コイルは、ラインコイルタイプが用いられる。また、前記外側冷却ジャケットは、二重筒状に形成されており、内側に筒状ワークＷと前記高周波加熱コイルとが収まるようになっている。この外側冷却ジャケットの内側面には、冷却液Ｌを噴射する複数個の噴射孔が開設されている。そして、この外側冷却ジャケットは、高周波加熱コイルによる高周波加熱がスタートした時点から焼入終了まで、周面Ｗ１に外側から冷却液Ｌを噴射するようになっている。この外側冷却ジャケットには、下側から冷却液Ｌが供給されるようになっている。
【０００４】
一方、前記内側冷却ジャケット５００は、筒状ワークＷの内側に挿入可能なように、筒状ワークＷの内径より小さな外径を有する筒状の本体５１０を有している。この内側冷却ジャケット５００の本体５１０の周面５１１にも冷却液Ｌを噴射する複数個の噴射孔５１２が開設されている。そして、この内側冷却ジャケット５００は、高周波加熱コイルによる高周波加熱が終了した時点で、周面Ｗ１に内側から冷却液Ｌを噴射するようになっている。この内側冷却ジャケット５００には、下側から冷却液Ｌが供給されるようになっている。
【０００５】
【発明が解決しようとする課題】
しかしながら、上述した内側冷却ジャケット５００には、以下のような問題点がある。
すなわち、内側冷却ジャケット５００の噴射孔５１２のうち、上側の噴射孔５１２からの冷却液Ｌの噴射が多く、下側の噴射孔５１２からの冷却液Ｌの噴射が少ないのである。これは、下側から供給された冷却液Ｌが内側冷却ジャケット５００の頂面５１３に当たった後に各噴射孔５１２から噴射されるためで、どうしても下側から供給される新たな冷却液Ｌによって下側の噴射孔５１２からの噴射されるべき冷却液Ｌが邪魔されるためであると考えられる。
【０００６】
このような冷却液Ｌの噴射のむらは、筒状ワークＷの冷却のむらになり、周面Ｗ１における均一な焼入層の達成の阻害要因となる。
【０００７】
本発明は上記事情に鑑みて創案されたもので、冷却液の噴射にむらがなく、均一な焼入層を形成することができる筒状ワーク用内側冷却ジャケットを提供することを目的としている。
【０００８】
【課題を解決するための手段】
本発明に係る筒状ワーク用内側冷却ジャケットは、高周波加熱される筒状ワークの内側に挿入されて、筒状ワークの内周面に向けて冷却液を噴射する筒状ワーク用冷却ジャケットにおいて、前記筒状ワークの内側に挿入可能であり且つ複数個の噴射孔が周面に設けられた筒状体であってその底面の中央に供給管が設けられた本体と、この本体の内側の中心線上に所定間隔毎に配置される複数の整流部材とを具備しており、前記整流部材は、供給管を通じて本体内に供給された冷却液の流れを当該本体の周面へと変えるために冷却液の上流側から下流側にかけて拡径した部材であって、前記本体の頂面から垂下された支持部材に取り付けられている。前記整流部材は前記支持部材に取付位置を変更可能に取り付けられている。或いは前記支持部材が前記本体の頂面に対して取付位置が変更可能となっている。
【０００９】
【発明の実施の形態】
図１は本発明の実施の形態に係る筒状ワーク用内側冷却ジャケットの概略的断面図、図２は本発明の実施の形態に係る筒状ワーク用内側冷却ジャケットに用いられる整流部材の概略的斜視図である。
【００１０】
本発明に係る筒状ワーク用内側冷却ジャケット１００は、高周波加熱される筒状ワークＷの内側に挿入されて、筒状ワークの内側から冷却液Ｌを噴射する筒状ワーク用冷却ジャケットであって、複数個の噴射孔１１２が周面１１１に開設されており、前記筒状ワークＷの内側に挿入可能な本体１１０と、この本体１１０の内側に設けられる整流部材１２０とを備えており、前記整流部材１２０は、冷却液Ｌの上流側から下流側にかけて拡径している。
【００１１】
前記本体１１０は、上下両面が閉塞された円筒形状に形成されており、周面１１１には複数個の噴射孔１１２が開設されている。上側を塞いでいる頂面１１３の中央には、後述する棒状の支持部材１３０が貫通する貫通孔１１３Ａが開設されている。そして、この貫通孔１１３Ａには、前記支持部材１３０を固定するための雌ねじ部（図示省略）が形成されている。
【００１２】
一方、本体１１０の下側を塞いでいる底面１１４の中央には、冷却液Ｌを供給する供給手段と接続された供給管１４０が開口している。この供給管１４０から本体１１０の内側に冷却液Ｌが供給されるのである。なお、前記供給手段としては、ポンプや水頭差を利用したシステム等がある。
【００１３】
前記整流部材１２０は、図２（Ａ）に示すように、大径側が本体１１０の内径より小さく設定された円錐台状に形成されている。この整流部材１２０の中心部には、棒状の支持部材１３０が螺合する雌ねじ部１２２が形成されている。この整流部材１２０の傾斜面１２１は、後述するように、冷却液Ｌの流れを変えるのに最も大きな役割を果たす部分である。
【００１４】
この整流部材１２０が取り付けられる支持部材１３０は、上述のように棒状に形成されており、全体に雄ねじ部（図示省略）が形成されている。前記整流部材１２０は、小径側を下向きにしてこの支持部材１３０に取り付けられる。すなわち、この整流部材１２０は、冷却液Ｌの供給方向（本体１１０の底面１１４側）である上流側から下流側（本体１１０の頂面１１３側）にかけて拡径するようになっているのである。
【００１５】
支持部材１３０への整流部材１２０の取り付けは、支持部材１３０の雄ねじ部と整流部材１２０の雌ねじ部１２２との螺合によって行われるため、整流部材１２０の支持部材１３０への取付位置は変更可能となっている。
【００１６】
次に、上述したように構成された筒状ワーク用内側冷却ジャケット１００の作用について説明する。
なお、筒状ワークＷの内側には、ラインコイルタイプの高周波加熱コイル（図示省略）と、外側冷却ジャケット（図示省略）とが設けられている。
【００１７】
高周波加熱コイルに図外の電源から高周波電流を供給し、筒状ワークＷの周面Ｗ１を加熱する。所定の加熱が完了すると、高周波電流の供給を停止するとともに、外側冷却ジャケットと筒状ワーク用内側冷却ジャケット１００とに冷却液Ｌを供給する。筒状ワーク用内側冷却ジャケット１００に供給された冷却液Ｌは、内部の整流部材１２０に当たることによって外側へと流れを変える。特に、整流部材１２０の傾斜面１２１に当たることによって冷却液Ｌの流れは外側へと変化する。
【００１８】
外側へと向かった冷却液Ｌは、噴射孔１１２から噴射される。具体的に説明すると、最も下側の整流部材１２０によって外側へと流れる方向を変えた冷却液Ｌのうちの一部が下側に位置する噴射孔１１２から噴射され、噴射されなかった冷却液Ｌの一部が次の整流部材１２０によって外側へと方向を変えられる。このようにして、冷却液Ｌの流れが順次変えられることによって冷却液Ｌの均一な噴射が実現されるのである。
【００１９】
ここで、各噴射孔１１２からの冷却液Ｌの噴射が均一化の要因としては、筒状ワーク用内側冷却ジャケット１００への冷却液Ｌの流入量、本体１１０の容積、噴射孔１１２の個数の他に、整流部材１２０の個数及び位置も要因となる。従って、整流部材１２０は支持部材１３０への取付位置を変更可能としているため、個数及び位置を適宜変更することで、各噴射孔１１２からの冷却液Ｌの噴射を均一化することができる。
【００２０】
また、支持部材１３０も同様に、前記頂面１１３への取付位置の変更を可能としている。すなわち、支持部材１３０の雄ねじ部と、頂面１１３に設けられた貫通孔１１３Ａの雌ねじ部との螺合具合を変更することで、支持部材１３０の頂面１１３への取付位置を変更するのである。
【００２１】
この整流部材１２０の支持部材１３０に対する取付位置の適宜な変更と、支持部材１３０の頂面１１３、すなわち本体１１０に対する取付位置の適宜な変更とを行うことによって、より高精度に各噴射孔１１２からの冷却液Ｌの噴射を均一化することができる。
【００２２】
なお、上述した実施の形態における整流部材１２０は、円錐台状であると説明したが、図２（Ｂ）に示すように、小径部が支持部材１３０と同径になった下向きの傘状であってもよい。また、すべての整流部材１２０は同じサイズであるとして説明したが、冷却液Ｌの均一化のために必要であるならば、異なるサイズとしてもよいことは勿論である。
【００２３】
【発明の効果】
本発明に係る筒状ワーク用内側冷却ジャケットは、高周波加熱される筒状ワークの内側に挿入されて、筒状ワークの内周面に向けて冷却液を噴射する筒状ワーク用冷却ジャケットにおいて、前記筒状ワークの内側に挿入可能であり且つ複数個の噴射孔が周面に設けられた筒状体であってその底面の中央に供給管が設けられた本体と、この本体の内側の中心線上に所定間隔毎に配置される複数の整流部材とを具備しており、前記整流部材は、供給管を通じて本体内に供給された冷却液の流れを当該本体の周面へと変えるために冷却液の上流側から下流側にかけて拡径した部材であって、前記本体の頂面から垂下された支持部材に取り付けられている。前記整流部材は前記支持部材に取付位置を変更可能に取り付けられている。或いは前記支持部材が前記本体の頂面に対して取付位置が変更可能となっている。
【００２４】
この筒状ワーク用内側冷却ジャケットによると、各噴射孔から噴射される冷却液を均一化することができるので、筒状ワークに均一な焼入層を形成することができる。
【００２５】
また、前記整流部材は、本体の頂面から垂下された支持部材に取り付けられているので、本体の内部において浮いた状態になるため、冷却液の流れを噴射の均一化以外に乱すことがない。また、従来のこの種の筒状ワーク用内側冷却ジャケットからの改造も簡単である。
【００２６】
さらに、前記整流部材は、前記支持部材への取付位置の変更を可能としているので、冷却液の噴射の均一化のための調整が可能である。
【００２７】
また、前記支持部材は、前記頂面への取付位置の変更を可能としているので、同様に冷却液の噴射の均一化のための調整が可能である。
【図面の簡単な説明】
【図１】本発明の実施の形態に係る筒状ワーク用内側冷却ジャケットの概略的断面図である。
【図２】本発明の実施の形態に係る筒状ワーク用内側冷却ジャケットに用いられる整流部材の概略的斜視図である。
【図３】従来のこの種の筒状ワーク用内側冷却ジャケットの概略的断面図である。
【符号の説明】
１００ 筒状ワーク用内側冷却ジャケット
１１０ 本体
１２０ 整流部材
１３０ 支持部材
Ｗ 筒状ワーク[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inner cooling jacket for a cylindrical workpiece that is inserted inside a cylindrical workpiece that is heated at a high frequency and injects a cooling liquid from the inner side of the cylindrical workpiece.
[0002]
[Prior art]
As shown in FIG. 3, the induction hardening apparatus that performs induction hardening on the peripheral surface W1 of the cylindrical workpiece W includes a high frequency heating coil (not shown) for heating the peripheral surface W1 from the inner surface, and the peripheral surface W1 on the outer side. An outer cooling jacket (not shown) for cooling from the inside and an inner cooling jacket 500 for cooling the peripheral surface W1 from the inside are required.
[0003]
A line coil type is used for the high-frequency heating coil. The outer cooling jacket is formed in a double cylinder shape, and the cylindrical workpiece W and the high-frequency heating coil are accommodated inside. A plurality of injection holes for injecting the coolant L are formed on the inner side surface of the outer cooling jacket. The outer cooling jacket sprays the coolant L from the outside to the peripheral surface W1 from the time when the high frequency heating by the high frequency heating coil starts until the end of quenching. A cooling liquid L is supplied to the outer cooling jacket from below.
[0004]
On the other hand, the inner cooling jacket 500 has a cylindrical main body 510 having an outer diameter smaller than the inner diameter of the cylindrical workpiece W so that the inner cooling jacket 500 can be inserted inside the cylindrical workpiece W. A plurality of injection holes 512 for injecting the coolant L are also formed in the peripheral surface 511 of the main body 510 of the inner cooling jacket 500. And this inner side cooling jacket 500 injects the cooling liquid L from the inner side to the surrounding surface W1 when the high frequency heating by a high frequency heating coil is complete | finished. The inner cooling jacket 500 is supplied with a cooling liquid L from below.
[0005]
[Problems to be solved by the invention]
However, the above-described inner cooling jacket 500 has the following problems.
In other words, among the injection holes 512 of the inner cooling jacket 500, the injection of the cooling liquid L from the upper injection holes 512 is large and the injection of the cooling liquid L from the lower injection holes 512 is small. This is because the coolant L supplied from the lower side is sprayed from the respective injection holes 512 after hitting the top surface 513 of the inner cooling jacket 500, and therefore it is inevitably lowered by the new coolant L supplied from the lower side. This is probably because the coolant L to be injected from the side injection holes 512 is obstructed.
[0006]
Such uneven spraying of the cooling liquid L causes uneven cooling of the cylindrical workpiece W, which is an impediment to achieving a uniform hardened layer on the peripheral surface W1.
[0007]
The present invention has been devised in view of the above circumstances, and an object thereof is to provide an inner cooling jacket for a cylindrical work that can form a uniform hardened layer without unevenness in the injection of the coolant.
[0008]
[Means for Solving the Problems]
An inner cooling jacket for a cylindrical workpiece according to the present invention is inserted into the inner side of a cylindrical workpiece that is heated at a high frequency, and in the cooling jacket for a cylindrical workpiece that injects a coolant toward the inner peripheral surface of the cylindrical workpiece. A cylindrical body that can be inserted inside the cylindrical workpiece and has a plurality of injection holes provided on the peripheral surface, and a supply pipe provided at the center of the bottom surface; and an inner center of the main body A plurality of rectifying members arranged at predetermined intervals on the line, and the rectifying members are cooled to change the flow of the coolant supplied into the main body through the supply pipe to the peripheral surface of the main body. A member having a diameter increased from the upstream side to the downstream side of the liquid, and is attached to a support member suspended from the top surface of the main body. The rectifying member is attached to the support member such that the attachment position can be changed. Alternatively, the mounting position of the support member can be changed with respect to the top surface of the main body.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
1 is a schematic cross-sectional view of an inner cooling jacket for a cylindrical workpiece according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a rectifying member used in the inner cooling jacket for a cylindrical workpiece according to an embodiment of the present invention. It is a perspective view.
[0010]
An inner cooling jacket 100 for a cylindrical workpiece according to the present invention is a cooling jacket for a cylindrical workpiece that is inserted inside a cylindrical workpiece W that is heated at a high frequency and injects a coolant L from the inner side of the cylindrical workpiece. A plurality of injection holes 112 are formed in the peripheral surface 111, and include a main body 110 that can be inserted inside the cylindrical workpiece W, and a rectifying member 120 provided inside the main body 110. The rectifying member 120 is enlarged in diameter from the upstream side to the downstream side of the coolant L.
[0011]
The main body 110 is formed in a cylindrical shape whose upper and lower surfaces are closed, and a plurality of injection holes 112 are formed in the peripheral surface 111. A through hole 113A through which a rod-like support member 130 described later passes is formed in the center of the top surface 113 blocking the upper side. And in this through-hole 113A, the internal thread part (illustration omitted) for fixing the said support member 130 is formed.
[0012]
On the other hand, a supply pipe 140 connected to a supply means for supplying the coolant L is opened at the center of the bottom surface 114 covering the lower side of the main body 110. The cooling liquid L is supplied from the supply pipe 140 to the inside of the main body 110. The supply means includes a system using a pump and a water head difference.
[0013]
As shown in FIG. 2A, the flow regulating member 120 is formed in a truncated cone shape whose large diameter side is set smaller than the inner diameter of the main body 110. A female screw portion 122 into which the rod-like support member 130 is screwed is formed at the center of the rectifying member 120. As will be described later, the inclined surface 121 of the rectifying member 120 is a part that plays the largest role in changing the flow of the coolant L.
[0014]
The support member 130 to which the rectifying member 120 is attached is formed in a rod shape as described above, and a male screw portion (not shown) is formed as a whole. The flow regulating member 120 is attached to the support member 130 with the small diameter side facing downward. That is, the rectifying member 120 is configured to increase in diameter from the upstream side, which is the supply direction of the coolant L (the bottom surface 114 side of the main body 110), to the downstream side (the top surface 113 side of the main body 110).
[0015]
Since the rectifying member 120 is attached to the support member 130 by screwing the male screw portion of the support member 130 and the female screw portion 122 of the rectifying member 120, the attachment position of the rectifying member 120 to the support member 130 can be changed. It has become.
[0016]
Next, the operation of the cylindrical workpiece inner cooling jacket 100 configured as described above will be described.
A line coil type high-frequency heating coil (not shown) and an outer cooling jacket (not shown) are provided inside the cylindrical workpiece W.
[0017]
A high frequency current is supplied to the high frequency heating coil from a power source (not shown) to heat the peripheral surface W1 of the cylindrical workpiece W. When the predetermined heating is completed, the supply of the high-frequency current is stopped and the coolant L is supplied to the outer cooling jacket and the cylindrical workpiece inner cooling jacket 100. The coolant L supplied to the inner cooling jacket 100 for the cylindrical workpiece changes its flow toward the outside by striking the internal rectifying member 120. In particular, the flow of the coolant L changes to the outside by hitting the inclined surface 121 of the rectifying member 120.
[0018]
The cooling liquid L directed outward is ejected from the ejection hole 112. More specifically, a part of the cooling liquid L whose direction of flowing to the outside is changed by the lowermost rectifying member 120 is injected from the injection hole 112 positioned on the lower side, and is not injected. Is partly changed to the outside by the next rectifying member 120. In this way, uniform injection of the cooling liquid L is realized by sequentially changing the flow of the cooling liquid L.
[0019]
Here, as the factors that make the injection of the cooling liquid L from each injection hole 112 uniform, the amount of the cooling liquid L flowing into the cylindrical work inner cooling jacket 100, the volume of the main body 110, and the number of the injection holes 112 are included. In addition, the number and position of the rectifying members 120 are factors. Therefore, since the rectifying member 120 can change the attachment position to the support member 130, the injection of the coolant L from each injection hole 112 can be made uniform by appropriately changing the number and position.
[0020]
Similarly, the support member 130 can change the mounting position on the top surface 113. That is, the mounting position of the support member 130 on the top surface 113 is changed by changing the degree of screwing between the male screw portion of the support member 130 and the female screw portion of the through hole 113A provided in the top surface 113. .
[0021]
By appropriately changing the mounting position of the flow regulating member 120 with respect to the support member 130 and appropriately changing the mounting position with respect to the top surface 113 of the support member 130, that is, the main body 110, the injection holes 112 can be more accurately detected. The injection of the coolant L can be made uniform.
[0022]
Although the rectifying member 120 in the above-described embodiment has been described as having a truncated cone shape, as illustrated in FIG. 2B, the rectifying member 120 has a downward umbrella shape in which the small diameter portion has the same diameter as the support member 130. There may be. Moreover, although all the rectifying members 120 have been described as having the same size, it is needless to say that different sizes may be used as long as they are necessary for uniformizing the coolant L.
[0023]
【The invention's effect】
An inner cooling jacket for a cylindrical workpiece according to the present invention is inserted into the inner side of a cylindrical workpiece that is heated at a high frequency, and in the cooling jacket for a cylindrical workpiece that injects a coolant toward the inner peripheral surface of the cylindrical workpiece. A cylindrical body that can be inserted inside the cylindrical workpiece and has a plurality of injection holes provided on the peripheral surface, and a supply pipe provided at the center of the bottom surface; and an inner center of the main body A plurality of rectifying members arranged at predetermined intervals on the line, and the rectifying members are cooled to change the flow of the coolant supplied into the main body through the supply pipe to the peripheral surface of the main body. A member having a diameter increased from the upstream side to the downstream side of the liquid, and is attached to a support member suspended from the top surface of the main body. The rectifying member is attached to the support member such that the attachment position can be changed. Alternatively, the mounting position of the support member can be changed with respect to the top surface of the main body.
[0024]
According to this cylindrical work inner cooling jacket, the coolant injected from each injection hole can be made uniform, so that a uniform hardened layer can be formed on the tubular work.
[0025]
Moreover, since the said rectification | straightening member is attached to the support member suspended from the top surface of the main body, since it will be in the floating state inside the main body, the flow of the cooling liquid will not be disturbed except for uniform injection. . Moreover, the modification from the conventional inner cooling jacket for a cylindrical workpiece of this kind is also easy.
[0026]
Furthermore, since the rectifying member can be changed in the mounting position on the support member, adjustment for uniform injection of the coolant is possible.
[0027]
Further, since the support member can change the mounting position on the top surface, adjustment for uniform coolant injection is also possible.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of an inner cooling jacket for a cylindrical workpiece according to an embodiment of the present invention.
FIG. 2 is a schematic perspective view of a rectifying member used in an inner cooling jacket for a cylindrical workpiece according to an embodiment of the present invention.
FIG. 3 is a schematic sectional view of a conventional inner cooling jacket for a cylindrical workpiece of this type.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Inner cooling jacket 110 for cylindrical workpieces Main body 120 Rectification member 130 Support member W Cylindrical workpiece

Claims (2)

高周波加熱される筒状ワークの内側に挿入されて、筒状ワークの内周面に向けて冷却液を噴射する筒状ワーク用冷却ジャケットにおいて、前記筒状ワークの内側に挿入可能であり且つ複数個の噴射孔が周面に設けられた筒状体であってその底面の中央に供給管が設けられた本体と、この本体の内側の中心線上に所定間隔毎に配置される複数の整流部材とを具備しており、前記整流部材は、供給管を通じて本体内に供給された冷却液の流れを当該本体の周面へと変えるために冷却液の上流側から下流側にかけて拡径した部材であって、前記本体の頂面から垂下された支持部材に取付位置が変更可能に取り付けられていることを特徴とする筒状ワーク用内側冷却ジャケット。A cooling jacket for a cylindrical workpiece, which is inserted inside a cylindrical workpiece to be heated at a high frequency and injects a cooling liquid toward the inner peripheral surface of the cylindrical workpiece. A main body provided with a supply pipe at the center of the bottom surface thereof, and a plurality of rectifying members arranged at predetermined intervals on the inner center line of the main body. The rectifying member is a member whose diameter is increased from the upstream side to the downstream side of the cooling liquid in order to change the flow of the cooling liquid supplied into the main body through the supply pipe to the peripheral surface of the main body. An inner cooling jacket for a cylindrical work , wherein the mounting position is attached to a support member suspended from the top surface of the main body so that the attachment position can be changed . 高周波加熱される筒状ワークの内側に挿入されて、筒状ワークの内周面に向けて冷却液を噴射する筒状ワーク用冷却ジャケットにおいて、前記筒状ワークの内側に挿入可能であり且つ複数個の噴射孔が周面に設けられた筒状体であってその底面の中央に供給管が設けられた本体と、この本体の内側の中心線上に所定間隔毎に配置される複数の整流部材とを具備しており、前記整流部材は、供給管を通じて本体内に供給された冷却液の流れを当該本体の周面へと変えるために冷却液の上流側から下流側にかけて拡径した部材であって、前記本体の頂面から垂下された支持部材に取り付けられており、前記支持部材は、前記頂面への取付位置の変更を可能としていることを特徴とする筒状ワーク用内側冷却ジャケット。 A cooling jacket for a cylindrical workpiece, which is inserted inside a cylindrical workpiece to be heated at a high frequency and injects a cooling liquid toward the inner peripheral surface of the cylindrical workpiece. A main body provided with a supply pipe at the center of the bottom surface thereof, and a plurality of rectifying members arranged at predetermined intervals on the inner center line of the main body. The rectifying member is a member whose diameter is increased from the upstream side to the downstream side of the cooling liquid in order to change the flow of the cooling liquid supplied into the main body through the supply pipe to the peripheral surface of the main body. An inner cooling jacket for a cylindrical workpiece, wherein the inner cooling jacket is attached to a support member suspended from the top surface of the main body, and the support member is capable of changing a mounting position on the top surface. .
JP30797399A 1999-10-29 1999-10-29 Inner cooling jacket for cylindrical workpieces Expired - Fee Related JP3794223B2 (en)

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JP3794223B2 true JP3794223B2 (en) 2006-07-05

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Publication number Priority date Publication date Assignee Title
GB2519345B (en) * 2013-10-18 2016-07-27 Messier-Dowty Ltd Apparatus for quenching
CN104032310A (en) * 2014-06-17 2014-09-10 陕西法士特齿轮有限责任公司 Penetrating rod for carburizing, quenching and mounting of ring-shaped parts
CN109234503B (en) * 2018-10-19 2024-02-13 河南北方红阳机电有限公司 Quenching device for barrel-shaped workpiece

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